src/test/ui/span/borrowck-object-mutability.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

trait Foo {
    fn borrowed(&self);
    fn borrowed_mut(&mut self);
}

fn borrowed_receiver(x: &Foo) {
    x.borrowed();
    x.borrowed_mut(); //~ ERROR cannot borrow
}

fn borrowed_mut_receiver(x: &mut Foo) {
    x.borrowed();
    x.borrowed_mut();
}

fn owned_receiver(x: Box<Foo>) {
    x.borrowed();
    x.borrowed_mut(); //~ ERROR cannot borrow
}

fn mut_owned_receiver(mut x: Box<Foo>) {
    x.borrowed();
    x.borrowed_mut();
}

fn main() {}